If you are not using global email security standards SPF, DKIM and DMARC, you should be. They’ve been around for many years and used and trusted by millions of people. They can only help.
Sender Policy Framework (SPF), Domain Keys Identified Mail (DKIM) and Domain-Based Message Authentication, Reporting and Conformance (DMARC) allow you to prevent malicious third parties from spoofing your email domain to others who use it. They don’t work perfectly, but when enabled will absolutely cut down on some forms of email maliciousness.
